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README, env file: Warn about open relay configuration

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Addresses: #1405
This commit is contained in:
Rainer Rillke 2020-03-01 19:40:50 +01:00
parent 7f3fe45a83
commit 43df48cb06
2 changed files with 4 additions and 1 deletions
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env-mailserver.dist
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@ -20,6 +20,9 @@ ONE_DIR=0
POSTMASTER_ADDRESS=
# Set different options for mynetworks option (can be overwrite in postfix-main.cf)
# **WARNING**: Adding the docker network's gateway to the list of trusted hosts, e.g. using the `network` or
# `connected-networks` option, can create an open relay
# https://github.com/tomav/docker-mailserver/issues/1405#issuecomment-590106498
# empty => localhost only
# host => Add docker host (ipv4 only)
# network => Add all docker containers (ipv4 only)